Jere is thinking of a number less than 28.431 and greater than 28.404. which of the following could be jere's number? 28.435, 28.342, 28.430, 28.419 28.42.

C.28.430

D.28.419

E.28.42

Step-by-step explanation:

We are given that Jere's thinking a number less than 28.431 and greater than 28.404.

A.28.435

It is not that number because it is greater than 28.431 but, we have to find the number less than 28.431.

B.28.342

It is not that number because it is less than 28.404.But,we have to find the number greater than 28.404.

C.28.430

It is that number because it is less than 28.431 and greater than 28.404.

D.28.419

It is that number because it is less than 28.431 and greater than 28.404.

E.28.42

It can be  write as 28.420

It is that number because it is less than 28.431 and greater than 28.404.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.